修复系统设置保存500：鉴权不再依赖缺失的lib.hub；补全order_prices初始化。

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/instance/instance_settings_register.py

@@ -30,8 +30,6 @@ def _api_login_required(hub_token_write_allowed: bool = False):
     def decorator(f):
         @wraps(f)
         def wrapped(*args, **kwargs):
-            from lib.hub.hub_auth import request_allowed as hub_request_allowed
-
             logged_in = bool(session.get("logged_in"))
             auth_disabled = (os.getenv("APP_AUTH_DISABLED") or "").strip().lower() in (
                 "1",
@@ -43,7 +41,20 @@ def _api_login_required(hub_token_write_allowed: bool = False):
             bridge = (os.getenv("HUB_BRIDGE_TOKEN") or "").strip()
             if hub_hdr and bridge and hub_hdr == bridge and not hub_token_write_allowed:
                 return jsonify({"ok": False, "msg": "Hub Token 不可修改实例设置"}), 403
-            if hub_request_allowed(logged_in, auth_disabled):
+
+            # crypto_okx 可无 lib.hub;鉴权与中控 request_allowed 对齐
+            allowed = bool(auth_disabled or logged_in)
+            if not allowed and hub_hdr and bridge and hub_hdr == bridge:
+                allowed = True
+            if not allowed:
+                try:
+                    from lib.hub.hub_auth import request_allowed as hub_request_allowed
+
+                    allowed = bool(hub_request_allowed(logged_in, auth_disabled))
+                except ImportError:
+                    allowed = False
+
+            if allowed:
                 return f(*args, **kwargs)
             return jsonify({"ok": False, "msg": "未登录"}), 401